]> GH barcode-02383672 Brazil Amazonas Rio Negro, 20km downstream from São Gabriel das Cachoeiras. Basin of Rio Negro Rauvolfia polyphylla Bentham Bentham 2022-08-30 09:13:14 W. C. Steward, I. J. Araujo, G. Rogers, J. F. Ramos, & J. Ribamar